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BREWERY WASTEWATER TREATMENT WITHOUT ACTIVATED SLUDGE BULKING PROBLEMS Mark G. Biesinger, Senior Process Engineer H. David Stensel, Manager Wastewater Technology Eimco PMD Division of Envirotech Corporation Salt Lake City, Utah 84110 David Jenkins, Professor Sanitary Engineering Research Laboratory University of California Berkeley, California 94720 The treatment of brewery wastewater by the activated sludge process often has been hindered by the development of filamentous activated sludge that settles slowly and compacts poorly. Eikelboom [1,2] has morphologically characterized more than 20 types of filamentous organisms present in activated sludge. The presence of a wide variety of a filamentous organisms in activated sludge suggests that there are a variety of conditions that cause their rapid growth and the ensuing sludge bulking. Recent work by Eikelboom [1,2] and Strom and Jenkins [3] indicated that types of organisms that cause bulking can to some extent be associated with process conditions and/or waste characteristics. The data in Table I shows that the types of filamentous organisms that are associated with low organic loads (F/M) are different from those found at conventional organic loads or low aeration basin dissolved oxygen (DO) concentrations. Palm et al. [4] found that for completely mixed activated sludge systems treating domestic wastewater, there exists for each F/M value in the range of 0.2-1.8 g COD/g VSS/day, a mixed liquor DO concentration below which bulking (due to Sphaerotilus natans) will occur as a result of low DO. The work of Eckenfelder and Jewell [3] on brewery wastewater corroborates these findings since their SVI, F/M and operating DO data fit the curve of Palm et al. [4]. Table I. Common Filamentous Organisms in Various Activated Sludge Systems Activated Sludge Condition Eikelboom [1,2] Strom & Jenkins [5, 6] Low F/M Conventional F/Ma Microthrix parvicella, Haliscomenobacter hydrossis. Type 0092, Type 0041, Type 0581 Type 0803 Sphaerotilus natans, Haliscomenobacter hydrossis. Type 02IN, Type 1701 Nocardia sp, Type 0041, Microthrix parvicella. Type 0581, Type 0961, Haliscomenobacter hydrossis Low Aeration Basin DO Nocardia sp, Type 1701, sphaerotilus natans. Type 1863, Type 021N, Haliscomenobacter hydrossis It is suspected that Eikelboom's conventional F/M conditions are also situations where aeration basin DO is too low for the F/M applied. 596
Object Description
Purdue Identification Number | ETRIWC198059 |
Title | Brewery wastewater treatment without activated sludge bulking problems |
Author |
Biesinger, M. G. (Mark G.) Stensel, H. David Jenkins, David |
Date of Original | 1980 |
Conference Title | Proceedings of the 35th Industrial Waste Conference |
Conference Front Matter (copy and paste) | http://earchives.lib.purdue.edu/u?/engext,31542 |
Extent of Original | p. 596-609 |
Collection Title | Engineering Technical Reports Collection, Purdue University |
Repository | Purdue University LIbraries |
Rights Statement | Digital object copyright Purdue University. All rights reserved. |
Language | eng |
Type (DCMI) | text |
Format | JP2 |
Date Digitized | 2009-10-22 |
Capture Device | Fujitsu fi-5650C |
Capture Details | ScandAll 21 |
Resolution | 300 ppi |
Color Depth | 8 bit |
Description
Title | page 596 |
Collection Title | Engineering Technical Reports Collection, Purdue University |
Repository | Purdue University Libraries |
Rights Statement | Digital copyright Purdue University. All rights reserved. |
Language | eng |
Type (DCMI) | text |
Format | JP2 |
Capture Device | Fujitsu fi-5650C |
Capture Details | ScandAll 21 |
Transcript | BREWERY WASTEWATER TREATMENT WITHOUT ACTIVATED SLUDGE BULKING PROBLEMS Mark G. Biesinger, Senior Process Engineer H. David Stensel, Manager Wastewater Technology Eimco PMD Division of Envirotech Corporation Salt Lake City, Utah 84110 David Jenkins, Professor Sanitary Engineering Research Laboratory University of California Berkeley, California 94720 The treatment of brewery wastewater by the activated sludge process often has been hindered by the development of filamentous activated sludge that settles slowly and compacts poorly. Eikelboom [1,2] has morphologically characterized more than 20 types of filamentous organisms present in activated sludge. The presence of a wide variety of a filamentous organisms in activated sludge suggests that there are a variety of conditions that cause their rapid growth and the ensuing sludge bulking. Recent work by Eikelboom [1,2] and Strom and Jenkins [3] indicated that types of organisms that cause bulking can to some extent be associated with process conditions and/or waste characteristics. The data in Table I shows that the types of filamentous organisms that are associated with low organic loads (F/M) are different from those found at conventional organic loads or low aeration basin dissolved oxygen (DO) concentrations. Palm et al. [4] found that for completely mixed activated sludge systems treating domestic wastewater, there exists for each F/M value in the range of 0.2-1.8 g COD/g VSS/day, a mixed liquor DO concentration below which bulking (due to Sphaerotilus natans) will occur as a result of low DO. The work of Eckenfelder and Jewell [3] on brewery wastewater corroborates these findings since their SVI, F/M and operating DO data fit the curve of Palm et al. [4]. Table I. Common Filamentous Organisms in Various Activated Sludge Systems Activated Sludge Condition Eikelboom [1,2] Strom & Jenkins [5, 6] Low F/M Conventional F/Ma Microthrix parvicella, Haliscomenobacter hydrossis. Type 0092, Type 0041, Type 0581 Type 0803 Sphaerotilus natans, Haliscomenobacter hydrossis. Type 02IN, Type 1701 Nocardia sp, Type 0041, Microthrix parvicella. Type 0581, Type 0961, Haliscomenobacter hydrossis Low Aeration Basin DO Nocardia sp, Type 1701, sphaerotilus natans. Type 1863, Type 021N, Haliscomenobacter hydrossis It is suspected that Eikelboom's conventional F/M conditions are also situations where aeration basin DO is too low for the F/M applied. 596 |
Resolution | 300 ppi |
Color Depth | 8 bit |
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